Archips asiatica

Author: Walsingham, 1900

Species Overview:

Adult: wingspan 19-26 mm in males, 24-31 mm in females; apex of forewing prominent in both sexes. Ground colour in males ochreous-cream to brownish yellow, with an orange hue in median and dorsal areas and very pale basally; the basal blotch connecting to median part of median fascia; females cinnamon brown with costal remainders of median fascia and subapical blotch. Hindwing brownish anally and orange apically in both sexes.

Taxonomic Description:

Male:

Archips asiatica male
Archips asiatica wing markings
External characters: 16-21 mm wingspan; forewing slightly expanding terminally; costa weakly curved outwards in basal third and somewhat concave postmedially; apex prominent, pointed; termen sinuate; costal fold broad, slightly tapering in distal portion, reaching to before middle of length of costa. Ground colour ochreous-cream to brownish yellow, with an orange hue in median and dorsal areas, more cream basally and with a weak pinkish sheen in distal half of wing. Costal fold ferruginous. Markings brownish to ferruginous-brown. Basal blotch subtriangular, suffused with dark brown costally; median fascia marked with blackish scales costally, atrophied at costa, broad but pale and diffuse towards dorsum; subapical blotch elongated, extending from middle of costa to before apex. Subterminal marking narrow dorsally. Termen suffused with blackish-brown apically. Cilia brownish, dark brown at apex, paler at tornus. Hindwing brownish anally and orange apically (Razowski, 1977).

male genitalia A. asiatica
aedeagus Archips asiatica
Genitalia: Uncus slender, slightly tapering apically; socii membranous, weak. Sacculus short, with short, smooth free termination and with large, delicately curved, median process. Aedeagus with row of dents situated along right dorsal margin in distal third.

Female:

External characters: 22-26 mm wingspan; costa strongly curved in basal half, concave beyond middle; apex protruding, long; termen sinuate. Ground colour cinnamon brown, rather pale, more ochreous distally, delicately strigulated with brown. Markings brown, consisting of a dorsal suffusion representing the basal blotch, costal and dorsal remainders of median fascia and elongate subapical blotch. Apex and termen suffused with dark grey or blackish. Hindwing brownish anally, orange apically and more cream costally.

female genitalia A. asiatica
Genitalia: Anterior (cup-shaped) part of sterigma large, with broad, rounded anterior lobes; antrum broad; ductus bursae long, cestum reaching to before middle of its length.

Variation:

In the males, the intensity of the ground colour may vary, as well as the degree of reduction of the markings. The costal part of the median fascia is often atrophied, and in extreme cases only the median part of the median fascia is preserved. Rarely, the subapical blotch is very pale, atrophied. Females are less variable. Occasionally the median fascia is almost completely atrophied.

Note:

According to Razowski, 1977, records of Archips asiatica in Japan concern Archips audax.

Biology:

Moths were collected between mid May and late November. Presumably there are two to three generations yearly.

Host plants:

Malus pumila, Prunus salicina, Prunus yedoensis, Sorbus commixta, Akebia quinata, Chloranthus serratus, Houttuynia cordata.

(Record copied from Byun et al., 1998, who included records for Archips audax)

Damage:

The species has been recorded feeding on apple in China (Ko-hsuin, 1974).

Distribution:

China: Shaanxi, Jiangsu, Hunan, Zhejiang; Korea; Russia: Siberia.

Pheromone:

Pheromone unknown.

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